Minimizing End-to-End Delays in Linear Multihop Networks

Minimizing End-to-End Delays in Linear Multihop Networks
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最大限度地减少线性多跳网络中的端到端延迟

DOI:
10.1109/tvt.2015.2475183
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发表时间:
2016-08
影响因子:
6.8
通讯作者:
Fan Pingzhi
Fan Pingzhi
中科院分区:
计算机科学2区
文献类型:
--
作者:
Hu Dali;Wu Jingxian;Fan Pingzhi

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本文研究了能够最小化端到端传输延迟的线性多跳网络的优化设计。在多跳网络中,跳数越多意味着每跳传输距离越短,但开销也越大;因此,确定可以最小化端到端延迟的最佳跳数至关重要。考虑两种网络配置:一种具有确定性等距中继,另一种具有在源和目的地之间均匀分布的随机中继。在存在噪声和/或干扰的情况下运行的两个网络的平均端到端延迟被表示为许多系统参数的函数,例如信道传播、噪声、干扰、协议开销和中继的几何分布。根据分析结果,可以获得各种系统配置的最佳跳数。结果表明,具有等距中继的网络可以比具有均匀分布中继的网络实现更短的端到端延迟。
The optimum designs of linear multihop networks that can minimize the end-to-end transmission delays are studied in this paper. In multihop networks, more hops mean a shorter transmission distance per hop but more overheads; thus, it is critical to identify the optimum number of hops that can minimize the end-to-end delay. Two network configurations are considered: one with deterministic equidistant relays and the other with random relays uniformly distributed between the source and destination. The average end-to-end delays of both networks operating in the presence of noise and/or interference are expressed as functions of a number of system parameters, such as channel propagations, noise, interference, protocol overhead, and the geometric distributions of the relays. Based on the analytical results, the optimum number of hops for various system configurations is obtained. It is shown that networks with equidistant relays can achieve a shorter end-to-end delay than those with uniformly distributed relays.
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